diff options
| author | David Cohen <david.a.cohen@linux.intel.com> | 2013-10-29 10:58:26 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-06 11:34:08 -0800 |
| commit | a5891096c1e99013f0fab10eb353d855988392d1 (patch) | |
| tree | 52702485111064a09ad80e1e733d7787c2573cc8 | |
| parent | c8579f3216b25a0c5adf473b2e1cbbb3f908fa4c (diff) | |
mmc: sdhci: add quirk for broken HS200 support
commit 13868bf20f2f2c305f96e23620b024e167d6f9cb upstream.
This patch defines a quirk for platforms unable to enable HS200 support.
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Reviewed-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Acked-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Chris Ball <chris@printf.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 3 | ||||
| -rw-r--r-- | include/linux/mmc/sdhci.h | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index bd8a0982aec3..08c069da2484 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -3004,7 +3004,8 @@ int sdhci_add_host(struct sdhci_host *host) /* SD3.0: SDR104 is supported so (for eMMC) the caps2 * field can be promoted to support HS200. */ - mmc->caps2 |= MMC_CAP2_HS200; + if (!(host->quirks2 & SDHCI_QUIRK2_BROKEN_HS200)) + mmc->caps2 |= MMC_CAP2_HS200; } else if (caps[1] & SDHCI_SUPPORT_SDR50) mmc->caps |= MMC_CAP_UHS_SDR50; diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h index 3e781b8c0be7..362927c48f97 100644 --- a/include/linux/mmc/sdhci.h +++ b/include/linux/mmc/sdhci.h @@ -98,6 +98,8 @@ struct sdhci_host { #define SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON (1<<4) /* Controller has a non-standard host control register */ #define SDHCI_QUIRK2_BROKEN_HOST_CONTROL (1<<5) +/* Controller does not support HS200 */ +#define SDHCI_QUIRK2_BROKEN_HS200 (1<<6) int irq; /* Device IRQ */ void __iomem *ioaddr; /* Mapped address */ |